Learn & Resources
Evidence-based sleep medicine,written by physicians.
Over 240 guides on sleep apnea, home sleep testing, CPAP therapy, and the comorbidities that make untreated sleep disorders dangerous. Every article is written or reviewed by our board-certified sleep medicine team.
1994
Practicing sleep medicine since
300K+
Patients tested at home
100+
Insurance plans accepted
24h
Typical test interpretation
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Most-used resources
If you are new here, these four resources answer 80% of questions we hear from patients.
What Is Sleep Apnea?
Causes, symptoms, health risks, and treatment options explained by physicians.
Epworth Sleepiness Scale
8-question self-assessment. Get your daytime sleepiness score in 2 minutes.
Frequently Asked Questions
Insurance, costs, what to expect, and how home sleep testing actually works.
Device Setup Guides
Step-by-step instructions for NightOwl, Dream, and ApneaLink home test devices.
Browse by topic
Sleep medicine, organized
Six topic clusters covering every question a patient typically asks before, during, and after a home sleep test.
Sleep Apnea Basics
Symptoms, diagnosis, types of sleep apnea, and when to get tested.
Home Sleep Testing
How HSAT compares to in-lab studies, accuracy data, and what your results mean.
CPAP & PAP Therapy
Machine types, mask fitting, side-effect fixes, and adherence troubleshooting.
Sleep & Heart Health
The cardiovascular link — hypertension, AFib, and stroke risk in untreated OSA.
Comorbidities
Diabetes, GERD, anxiety, weight gain — how sleep apnea connects to other conditions.
Insurance & Coverage
Medicare, commercial plans, prior authorization, and cost-of-care guides.
Editorial standards
Why our guides cite the studies they reference
Search results for sleep medicine are dominated by content marketing from device vendors, supplement companies, and SEO farms. Most of what ranks on the first page isn't wrong, but it's usually shallow — and occasionally dangerous. Patients acting on bad information delay diagnosis by months or years.
Every article on this site is written or reviewed by our board-certified sleep medicine physicians. Specific claims (prevalence rates, treatment efficacy, drug interactions, surgical success rates) are cited to primary sources: AASM clinical practice guidelines, ACP recommendations, peer-reviewed studies in Sleep, CHEST, and JAMA, and FDA-approved device documentation.
When something is uncertain, we say so. When the evidence has changed in the last few years (Inspire therapy outcomes, GLP-1 effects on OSA, central apnea management), we update the article and date the update.
Board-certified review
Every guide is signed off by a physician credentialed in sleep medicine.
Primary sources cited
AASM, ACP, peer-reviewed journals, and FDA device documentation.
Updated regularly
Articles are revisited when major studies, guidelines, or devices change.
Written for patients
Plain language, no jargon, no scare tactics. Real questions, real answers.
Recently published
New on the blog
Article
Sleep Apnea and GERD: Why Acid Reflux Gets Worse at Night and What to Do About It
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Morning Headaches and Sleep Apnea: Why You Wake With a Headache and What It Means
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WatchPAT Home Sleep Test: How It Works, Accuracy, and What to Expect
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Sleep Apnea and Weight Gain: Why Untreated OSA Makes Weight Loss Harder
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Sleep Apnea and Anxiety: The Two-Way Link Between Disrupted Sleep and Mental Health
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Sleep Apnea and Atrial Fibrillation: The Cardiovascular Connection
Roughly half of patients with atrial fibrillation also have obstructive sleep apnea. Untreated OSA reduces the success of every AFib treatment. Here is why cardiologists are screening more aggressively and what that means for you.
Read articleReady when you are
Think you might have sleep apnea?
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